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51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* setconsole.c - redirect system console output
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*
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* Copyright (C) 2004,2005 Enrik Berkhan <Enrik.Berkhan@inka.de>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <getopt.h> /* struct option */
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#include "busybox.h"
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static const struct option setconsole_long_options[] = {
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{ "reset", 0, NULL, 'r' },
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{ 0, 0, 0, 0 }
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};
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#define OPT_SETCONS_RESET 1
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int setconsole_main(int argc, char **argv)
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{
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unsigned long flags;
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const char *device = CURRENT_TTY;
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bb_applet_long_options = setconsole_long_options;
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flags = bb_getopt_ulflags(argc, argv, "r");
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if (argc - optind > 1)
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bb_show_usage();
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if (argc - optind == 1) {
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if (flags & OPT_SETCONS_RESET)
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bb_show_usage();
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device = argv[optind];
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} else {
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if (flags & OPT_SETCONS_RESET)
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device = CONSOLE_DEV;
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}
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if (-1 == ioctl(bb_xopen(device, O_RDONLY), TIOCCONS)) {
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bb_perror_msg_and_die("TIOCCONS");
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}
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return EXIT_SUCCESS;
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}
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